Library of Congress >> MARC >> Bibliographic >> 5XX >> 520

520 - Summary, Etc. (R)


MARC 21 Bibliographic - Full
October 2007

First Indicator
Display constant controller
# - Summary
0 - Subject
1 - Review
2 - Scope and content
3 - Abstract
4 - Content advice
8 - No display constant generated

Second Indicator
Undefined
# - Undefined


Subfield Codes
$a - Summary, etc. (NR)
$b - Expansion of summary note (NR)
$c - Assigning source (NR)
$u - Uniform Resource Identifier (R)
$2 - Source (NR)
$3 - Materials specified (NR)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Unformatted information that describes the scope and general contents of the materials.

This could be a summary, abstract, annotation, review, or only a phrase describing the material.

The level of detail appropriate in a summary may vary depending on the audience for a particular product. When a distinction between levels of detail is required, a brief summary is given in subfield $a and a fuller annotation is given in subfield $b.

The text is sometimes displayed and/or printed with an introductory term that is generated as a display constant based on the first indicator value.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

First Indicator - Display constant controller
Controls the generation of a display constant preceding the information.
# - Summary
Used to generate the display constant Summary:.
520 ##$aAn illustrated collection of nursery rhymes set to music.
0 - Subject
Used to generate the display constant Subject:.
520 0#$aTwo head-and-shoulder portraits in separate ornamental oval frames, one frame held by eagle.
1 - Review
Used to generate the display constant Review:.
520 1#$a"Combines the most frequently asked questions regarding AIDS with the most prominent US physician, former Surgeon General C. Everett Koop, resulting in an informative 38-minute production"--Video rating guide for libraries, winter 1990.
2 - Scope and content
Used to generate the display constant Scope and content:.
520 2#$aSeries consists of minutes of meetings of the Board together with correspondence and other documents referred to in the minutes. The records reflect...
3 - Abstract
Used to generate the display constant Abstract:.
520 3#$aThe study examines the fertility history of American couples in metropolitan America and the motivational connections between the environment and fertility decisions and behavior.$bPhase I looks at the social and psychological factors thought to relate to differences in fertility. Phase II focuses on why some couples stopped at two children while others had a third or fourth child during the first and second phase. Phase III examines how well attitudes and events of the early marriage determined the record of the later years of child bearing.
4 - Content advice
Used to generate the display constant Content advice:.
520 4#$aContains violence$c[Revealweb organization code]
8 - No display constant generated
Second Indicator - Undefined
Undefined and contains a blank (#).

SUBFIELD CODES

$a - Summary, etc.
Text of the summary, abstract, review, etc. When no distinction between levels of detail in the text is required, subfield $a contains all the text. When a distinction is appropriate, subfield $a contains a brief statement, with additional information being provided in subfield $b.
520 ##$aDescribes associations made between different animal species for temporary gain or convenience as well as more permanent alliances formed for mutual survival.
520 ##$aKate and Ben follow their rabbit into a haunted house and discover the source of the house's ghostly sound.
520 ##$aA data base consisting of deflator information applicable to the energy supply and planning model data base produced by the Bechtel Corporation.
520 ##$aLetter books and ledgers of Alexander Gusdorf and his brother, Gerson Gusdorf, who ran a general store in Taos, N.M.
520 ##$aPapers "originally commissioned as course material for a series of continuing legal education seminars"-- Pref., v. 1.
520 2#$aFonds consists of minutes of meetings, research files relating to the delivery of health case services in Nova Scotia, recorded...
520 ##$aMiscellaneous cartographic records with an emphasis on biogeography of the United States and Alaska, 1872-1941.$bIncludes published and photoprocessed maps of Alaska and coastal waters, 1888-90, many of which were compiled from surveys made on the "Albatross";-maps, 1908-19, annotated by the Alaskan Fisheries Division...
520 ##$aRecords the events, people, and places that made news in 1973 and updates the information from the encyclopedia's first year.
520 1#$a"Combines the most frequently asked questions regarding AIDS with the most prominent US physician, former Surgeon General C. Everett Koop, resulting in an informative 38-minute production"--Cf. Video rating guide for libraries, winter 1990.
$b - Expansion of summary note
Expansion of the brief summary recorded in subfield $a.
520 ##$aPublic release motion pictures, 1915-37.$bIncludes films on control of rats, prairie dogs and porcupines; fish culture in the United States and pearl culture in Japan; inspection trip to Alaska by Service officials; life in a Boy Scout camp and Air Service bombing techniques in 1921.
520 ##$aLetters, primarily to Angelica Schuyler Church (1756-1815), wife of John Barker Church and daughter of Philip John Schuyler, or to members of her family.$bCorrespondents include Alexander Hamilton (her brother-in-law), Thomas Jefferson, the Marquis de Lafayette, Philip John Schuyler and George Washington. Also included is one order, one deed, and two cut autographs.
$c - Assigning source
Organization code or name of the agency or other source (e.g., journal or newspaper) that supplied the data (summary, review, abstract, content advice statement, etc.) recorded in subfield $a.
520 4#$aContains swear words, sex scenes and violence$c[Revealweb organization code]
520 4#$a"Happy Feet" may be too much for many kids younger than 7 and some younger than 8. (Know how well your child separates animated fantasy from reality.)$cFamily Filmgoer.$uhttp://www.washingtonpost.com/wp-dyn/content/article/2006/11/16/AR2006111600269.html
$u - Uniform Resource Identifier
Uniform Resource Identifier (URI), for example a URL or URN, which provides electronic access data in a standard syntax. This data can be used for automated access to an electronic item using one of the Internet protocols.
520 3#$uhttp://www.ojp.usdoj.gov/bjs/abstract/cchrie98.htm
Display example: 
Abstract: http://www.ojp.usdoj.gov/bjs/abstract/cchrie98.htm
$2 - Source
Source code for the particular classification system used (for example, the MPAA (USA) and BBFC (UK) film classification systems) to construct the content advice statement recorded in subfield $a. Code from: Content Advice Classification Source Codes .
520 4#$aContains strong sexual theme and fetish scenes$cCentral County Library$2[Source code for the content advice classification system used]
$3 - Materials specified
Part of the described materials to which the field applies.
$6 - Linkage
See description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.

INPUT CONVENTIONS

Punctuation - This field ends with a period unless another mark of punctuation is present. If the final subfield is subfield $u, the mark of punctuation precedes that subfield.
Display Constants - Introductory terms such as Summary: or Subject: are not carried in the MARC record. They may be system generated as display constants associated with the first indicator value.
First indicator Display constant
# Summary:
0 Subject:
1 Review:
2 Scope and content:
3 Abstract:
4 Content advice:
8 [no display constant]

CONTENT DESIGNATOR HISTORY

Indicator 1 - Display constant controller
4 - Content advice [NEW, 2007]

$c - Assigning source [NEW, 2007]
$u - Uniform Resource Identifier [NEW, 2000]
$z - Source of note information (BK, AM, CF, SE) [OBSOLETE, 1990]
Source information is included as part of the summary note in subfield $a or the expansion of the summary note in subfield $b.
$2 - Source [NEW, 2007]

(02/23/2008) Contact Us